<?php /** * * Function code for the matrix determinant() function * * @copyright Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix) * @license https://opensource.org/licenses/MIT MIT */ namespace Matrix; /** * Returns the determinant of a matrix or an array. * * @param Matrix|array $matrix Matrix or an array to treat as a matrix. * @return Matrix The new matrix * @throws Exception If argument isn't a valid matrix or array. */ function determinant($matrix) { if (!is_object($matrix) || !($matrix instanceof Matrix)) { $matrix = new Matrix($matrix); } return Functions::determinant($matrix); }